Buggy code:
public class TeiidMetadataImportInfo implements UiConstants { public static final int FILE_MODE_FLAT_FILE_LOCAL = 0 ; public static final int FILE_MODE_FLAT_FILE_URL = 1 ; public static final int FILE_MODE_TEIID_XML_FILE = 2 ; public static final int FILE_MODE_TEIID_XML_URL = 3 ; public static final int REST_MODE_URL = 4 ; private static final String I18N_PREFIX = I18nUtil . getPropertyPrefix ( TeiidMetadataImportInfo . class ) ; private static String getString ( final String id ) { } private Map < File , TeiidMetadataFileInfo > fileInfoMap ; private Map < File , TeiidXmlFileInfo > xmlFileInfoMap ; private String sourceModelName ; private IPath sourceModelLocation ; private boolean sourceModelExists ; private String viewModelName ; private IPath viewModelLocation ; private boolean viewModelExists ; private IConnectionProfile connectionProfile ; private IStatus status ; private IStatus NO_FILES_STATUS ; private int fileMode ; private String fileFilterText ; public TeiidMetadataImportInfo ( ) { } private void initialize ( ) { } public String getSourceModelName ( ) { } public void setSourceModelName ( String sourceModelName ) { } public IPath getSourceModelLocation ( ) { } public void setSourceModelLocation ( IPath location ) { } public void setSourceModelExists ( boolean sourceModelExists ) { } public boolean sourceModelExists ( ) { } public String getViewModelName ( ) { } public void setViewModelName ( String viewModelName ) { } public IPath getViewModelLocation ( ) { } public void setViewModelLocation ( IPath location ) { } public void setViewModelExists ( boolean viewModelExists ) { } public boolean viewModelExists ( ) { } public void addFileInfo ( TeiidMetadataFileInfo fileInfo ) { } public TeiidMetadataFileInfo getFileInfo ( File file ) { } public void addXmlFileInfo ( TeiidXmlFileInfo fileInfo ) { } public TeiidXmlFileInfo getXmlFileInfo ( File file ) { } public void setDoProcess ( File file , boolean doProcess ) { } public void setDoProcessXml ( File file , boolean doProcess ) { } public IProject getTargetProject ( ) { } public TeiidMetadataFileInfo getCheckedFileInfo ( ) { } public IConnectionProfile getConnectionProfile ( ) { } public void setConnectionProfile ( IConnectionProfile connectionProfile ) { } public IStatus getStatus ( ) { } public void setStatus ( IStatus status ) { } public Collection < TeiidMetadataFileInfo > getFileInfos ( ) { } public Collection < TeiidXmlFileInfo > getXmlFileInfos ( ) { } public void clearFileInfos ( ) { } public void clearXmlFileInfos ( ) { } public void validate ( ) { <START_BUG> if ( isFlatFileLocalMode ( ) ) { <END_BUG> if ( this . fileInfoMap . isEmpty ( ) ) { setStatus ( new Status ( IStatus . ERROR , PLUGIN_ID , TeiidMetadataImportInfo . getString ( "noDataFilesFound" ) ) ) ; return ; } boolean noneProcessed = true ; for ( ITeiidMetadataFileInfo info : fileInfoMap . values ( ) ) { if ( info . doProcess ( ) ) { noneProcessed = false ; } } if ( noneProcessed ) { setStatus ( new Status ( IStatus . ERROR , PLUGIN_ID , TeiidMetadataImportInfo . getString ( "noDataFilesSelected" ) ) ) ; return ; } for ( TeiidMetadataFileInfo info : fileInfoMap . values ( ) ) { if ( ( info . doProcess ( ) ) && ( ( info . getStatus ( ) . getSeverity ( ) ) > ( IStatus . WARNING ) ) ) { setStatus ( new Status ( IStatus . ERROR , PLUGIN_ID , Util . getString ( ( ( TeiidMetadataImportInfo . I18N_PREFIX ) + "errorInImportConfiguration" ) , info . getDataFile ( ) . getName ( ) ) ) ) ; return ; } } setStatus ( Status . OK_STATUS ) ; } else { if ( this . xmlFileInfoMap . isEmpty ( ) ) { setStatus ( new Status ( IStatus . ERROR , PLUGIN_ID , TeiidMetadataImportInfo . getString ( "noXmlDataFilesFound" ) ) ) ; return ; } boolean noneProcessed = true ; for ( TeiidXmlFileInfo info : xmlFileInfoMap . values ( ) ) { if ( info . doProcess ( ) ) { noneProcessed = false ; } } if ( noneProcessed ) { setStatus ( new Status ( IStatus . ERROR , PLUGIN_ID , TeiidMetadataImportInfo . getString ( "noXmlDataFilesSelected" ) ) ) ; return ; } for ( TeiidXmlFileInfo info : xmlFileInfoMap . values ( ) ) { if ( ( info . doProcess ( ) ) && ( ( info . getStatus ( ) . getSeverity ( ) ) > ( IStatus . WARNING ) ) ) { setStatus ( new Status ( IStatus . ERROR , PLUGIN_ID , Util . getString ( ( ( TeiidMetadataImportInfo . I18N_PREFIX ) + "errorInXmlImportConfiguration" ) , info . getDataFile ( ) . getName ( ) ) ) ) ; return ; } } setStatus ( Status . OK_STATUS ) ; } if ( ( ( getStatus ( ) . isOK ( ) ) && ( ( viewModelLocation ) != null ) ) && ( ( sourceModelLocation ) != null ) ) { if ( ( ( viewModelLocation . segmentCount ( ) ) > 0 ) && ( ( sourceModelLocation . segmentCount ( ) ) > 0 ) ) { if ( ! ( viewModelLocation . segment ( 0 ) . equalsIgnoreCase ( sourceModelLocation . segment ( 0 ) ) ) ) { setStatus ( new Status ( IStatus . ERROR , PLUGIN_ID , Util . getString ( ( ( TeiidMetadataImportInfo . I18N_PREFIX ) + "errorFileLocationsInDifferentProjects" ) ) ) ) ; } } } } public boolean isFlatFileLocalMode ( ) { } public boolean isFlatFileUrlMode ( ) { } public boolean isXmlLocalFileMode ( ) { } public boolean isXmlUrlFileMode ( ) { } public boolean isRestUrlFileMode ( ) { } public void setFileMode ( int mode ) { } public int getFileMode ( ) { } public void setFileFilterText ( String filterText ) { } public String getFileFilterText ( ) { } @ Override public String toString ( ) { } }

Fix:
if ( ( isFlatFileLocalMode ( ) ) || ( isFlatFileUrlMode ( ) ) ) {